Find Dissolved Oxygen Sensors Manufacturers
About Dissolved Oxygen Sensors
Dissolved oxygen sensors and dissolved oxygen probes are used to measure the amount of oxygen that is dissolved water, by unit volume. The amount of oxygen that a given volume of water can hold is a function of the atmospheric pressure at the water-air interface, the temperature of the water, and the amount of other dissolved substances. The concentration of dissolved oxygen (DO) is usually expressed in milligrams of oxygen per liter of water (mg/L) or parts per million (ppm). Some meters compare calculated oxygen content with observed concentration and report percent saturation (% sat.).
Dissolved oxygen sensors function via a thin organic membrane that covers an electrolyte and two metal electrodes. When water enters the device, oxygen diffuses through the membrane at a rate proportional to its partial pressure. The greater the partial pressure of the oxygen, the greater the volume of oxygen that will diffuse through the membrane. Dissolved oxygen meters measure the current as oxygen is reduced at the cathode and more oxygen diffuses through the membrane. Since the diffusion current is directly proportional to the concentration of dissolved oxygen, the dissolved oxygen sensor converts the current measurement into concentration units. The term “dissolved oxygen sensors” refers to the entire sensor assembly, including the electrodes, electrolyte solutions, membranes, and thermistor thermometers.
More >>Other Topics You Might Be Interested In
-
Power: Dissolved Oxygen and ORP Measurements
ORP (oxidation reduction or redox potential) and DO (dissolved oxygen) measurements can provide valuable information in makeup water treatment, cycle chemistry control and stator coolant. Taking the...(read more)
-
Optical Fluorescence Sensors
Optical fluorescence sensors do not use oxygen during measurement; therefore, they do not require stirring. These dissolved oxygen sensors are well-suited for long-term measurements of groundwater...(read more)
-
Success Story: 770MAX Provides Reliable Multiparameter Monitoring for Cycle Chemistry
AEP Appalachian Power Company Clinch River Station in Virginia, USA The AEP Appalachian Power Company Clinch River Station in Virginia has three coal-fired 235 MW units built in the early 1960s. They...(read more)
Engineering Web: Dissolved Oxygen Sensors
Pages: 1 - 3 of 218
|
Dissolved Oxygen Sensors Dissolved Oxygen Sensors Choose, Research & Enquire Dissolved Oxygen Sensors Mettler-Toledo's Dissolved Oxygen Sensors to monitor your processes. |
|
|
Dissolved Oxygen Sensors Information | Business.com Dissolved Oxygen Sensors Home » Directory » Industrial Goods & Services » Industrial Supplies » See Business.com, Inc. Information |
|
|
Ultrasonic Flow Meters, Clamp on Flow meters - Level Sensors -... RS Hydro are an industry leading supplier of ultrasonic flow meters, water quality monitoring equipment and level sensors. |
